I'm aware of two Wacom bugs that can cause 4.4 to lockup, both of which have been recently fixed. It would be very good to know if you're experiencing either. Please let us know what Wacom device you are using that causes these lockups.
Issue [1] sounds most like the symptoms you describe and affects multiple tablets (Primarily the newest "Intuos" tablets with model numbers CTL-490, CTH-490, CTL-690, and CTH-690). A fix is included in Linux 4.4.2 as well as the linuxwacom project's backported input-wacom 0.30.2 driver. Updating the kernel or installing the input-wacom driver should narrow down if this is the problem. You might try SSHing into your system prior to the lockup, running `sudo journalctl -f`, and then bringing the pen into prox to trigger the lockup -- if you're lucky, after a short time you'll see a kernel LOCKUP message printed out that you can compare to the bug report. Issue [2] I believe is specific to the CTL-471 and CTL-671. The fix has been sent for inclusion in later 4.4 releases but has not yet (as far as I'm aware) yet been accepted. [1]: https://sourceforge.net/p/linuxwacom/bugs/293/ [2]: https://bugzilla.redhat.com/show_bug.cgi?id=1317116 ** Bug watch added: Red Hat Bugzilla #1317116 https://bugzilla.redhat.com/show_bug.cgi?id=1317116 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1548581 Title: using wacom tablet crashes the whole system in 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1548581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
